Adj. 1. cabortunistic - taking immediate advantage, by flagging down an approaching cab/taxi, often unethically, without regard to others who have been attempting for a longer time period to flag a cab/taxi at the same location.

As if I'd let that cabortunistic jerk beat me out and grab that taxi ahead of me. No sir, not after I've been waiting on this corner for 10 minutes with my twins in their stroller. Unbelievable how clueless and selfish people are.